/* ==========================================================================
   Ardantis LLC — corporate site stylesheet
   Built to the Ardantis Brand Guidelines v1.0 (January 2026)
   ========================================================================== */

:root {
  --bronze-dark:  #5a4a3a;
  --bronze-mid:   #6b5344;
  --bronze-light: #8b7355;
  --charcoal:     #2d2d2d;
  --navy:         #0a1628;
  --steel:        #5a6c7d;
  --ivory:        #fafaf8;
  --ivory-dark:   #f0efe8;
  --platinum:     #e5e4e2;
  --gold:         #d4af37;
  --gold-dark:    #b8860b;
  --white:        #ffffff;

  --serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sans:  'Montserrat', Arial, Helvetica, sans-serif;

  --max: 1140px;
  --gut: 32px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.75;
  color: #444;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

a { color: var(--bronze-mid); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--bronze-dark); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }
.narrow { max-width: 780px; }

/* ---------- Typography ---------------------------------------------------- */

h1, h2, h3, h4 { font-family: var(--serif); color: var(--charcoal); font-weight: 400; margin: 0 0 .6em; }

h1 { font-size: clamp(2.4rem, 5.5vw, 3.6rem); line-height: 1.15; letter-spacing: .02em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); line-height: 1.25; }
h3 { font-size: 1.35rem; line-height: 1.35; }

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--sans);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--bronze-mid);
  margin: 0 0 18px;
}
.eyebrow.on-dark { color: var(--gold); }

.lede { font-size: 1.06rem; color: #4a4a4a; }

.rule { width: 56px; height: 1px; background: var(--bronze-light); border: 0; margin: 0 0 28px; }
.rule.centred { margin-left: auto; margin-right: auto; }

/* Registered trademark mark — always superscript, never full size */
sup.reg {
  font-size: .58em;
  vertical-align: super;
  line-height: 0;
  letter-spacing: 0;
  margin-left: .04em;
}
.stat .figure sup.reg { font-size: .34em; }
.footer-bar sup.reg, .site-footer sup.reg { font-size: .62em; }

/* ---------- Buttons ------------------------------------------------------- */

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  padding: 15px 34px;
  border: 1px solid var(--bronze-mid);
  color: var(--bronze-mid);
  background: transparent;
  cursor: pointer;
  transition: background .25s ease, color .25s ease, border-color .25s ease;
}
.btn:hover { background: var(--bronze-mid); color: var(--white); }

.btn.solid { background: var(--bronze-mid); color: var(--white); }
.btn.solid:hover { background: var(--bronze-dark); border-color: var(--bronze-dark); }

.btn.on-dark { border-color: rgba(212,175,55,.65); color: var(--gold); }
.btn.on-dark:hover { background: var(--gold); border-color: var(--gold); color: var(--navy); }

/* ---------- Header -------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--ivory-dark);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 14px; }
.brand svg { width: 40px; height: 40px; display: block; }
.brand-name {
  font-family: var(--serif);
  font-size: 1.32rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--charcoal);
  line-height: 1;
}

.nav { display: flex; align-items: center; gap: 38px; }
.nav a {
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--charcoal);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--bronze-mid); border-bottom-color: var(--bronze-light); }
.nav a[aria-current="page"] { color: var(--bronze-mid); border-bottom-color: var(--bronze-light); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--platinum);
  padding: 10px 11px;
  cursor: pointer;
  line-height: 0;
}
.nav-toggle span { display: block; width: 20px; height: 1px; background: var(--charcoal); }
.nav-toggle span + span { margin-top: 5px; }

/* ---------- Sections ------------------------------------------------------ */

section { padding: 96px 0; }
section.tight { padding: 72px 0; }
.bg-ivory { background: var(--ivory); }
.bg-ivory-dark { background: var(--ivory-dark); }
.bg-navy { background: var(--navy); color: rgba(255,255,255,.72); }
.bg-navy h1, .bg-navy h2, .bg-navy h3 { color: var(--white); }
.bg-charcoal { background: var(--charcoal); color: rgba(255,255,255,.7); }
.bg-charcoal h1, .bg-charcoal h2, .bg-charcoal h3 { color: var(--white); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.centred { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Hero ---------------------------------------------------------- */

.hero {
  position: relative;
  background:
    radial-gradient(ellipse at 78% 18%, rgba(139,115,85,.20), transparent 58%),
    linear-gradient(160deg, #0a1628 0%, #101f34 55%, #16283f 100%);
  color: rgba(255,255,255,.74);
  padding: 132px 0 124px;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { color: var(--white); max-width: 19ch; }
.hero .lede { color: rgba(255,255,255,.72); max-width: 56ch; font-size: 1.08rem; }
.hero .hero-actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 16px; }

.page-hero {
  background: linear-gradient(160deg, #0a1628 0%, #16283f 100%);
  color: rgba(255,255,255,.72);
  padding: 96px 0 84px;
}
.page-hero h1 { color: var(--white); font-size: clamp(2.1rem, 4.4vw, 3rem); }
.page-hero .lede { color: rgba(255,255,255,.72); max-width: 60ch; }

/* ---------- Stat strip ---------------------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ivory-dark);
}
.stat { padding: 40px 28px; border-right: 1px solid var(--ivory-dark); }
.stat:last-child { border-right: 0; }
.stat .figure {
  font-family: var(--serif);
  font-size: 2.1rem;
  color: var(--bronze-dark);
  line-height: 1.1;
  display: block;
  margin-bottom: 8px;
}
.stat .label {
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

/* ---------- Cards --------------------------------------------------------- */

.grid { display: grid; gap: 28px; }
.grid.two   { grid-template-columns: repeat(2, 1fr); }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four  { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--ivory-dark);
  padding: 40px 34px;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.card:hover {
  border-color: var(--bronze-light);
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(45,45,45,.06);
}
.card .num {
  font-family: var(--serif);
  font-size: .95rem;
  color: var(--bronze-light);
  letter-spacing: .1em;
  display: block;
  margin-bottom: 18px;
}
.card h3 { margin-bottom: .5em; }
.card p { font-size: .92rem; color: #555; }

.card.plain { background: transparent; border: 0; padding: 0; }
.card.plain:hover { transform: none; box-shadow: none; }

.card-icon { width: 40px; height: 40px; margin-bottom: 22px; display: block; }

/* ---------- Sector list --------------------------------------------------- */

.sector {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  padding: 52px 0;
  border-top: 1px solid var(--ivory-dark);
  align-items: start;
}
.sector:last-child { border-bottom: 1px solid var(--ivory-dark); }
.sector .sector-label {
  font-size: .66rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--bronze-mid);
  padding-top: 10px;
}
.sector h3 { margin-top: 0; }
.sector ul {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  columns: 2;
  column-gap: 40px;
}
.sector li {
  font-size: .88rem;
  color: #555;
  padding: 7px 0 7px 18px;
  position: relative;
  break-inside: avoid;
}
.sector li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  width: 6px;
  height: 1px;
  background: var(--bronze-light);
}

/* ---------- Split panel --------------------------------------------------- */

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }

.panel-figure {
  aspect-ratio: 4 / 3;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(139,115,85,.22), transparent 62%),
    linear-gradient(155deg, #0a1628 0%, #14243a 60%, #1b2f49 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #1b2f49;
}
.panel-figure svg { width: 46%; height: auto; }

/* ---------- Contact ------------------------------------------------------- */

.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 72px; align-items: start; }

.detail { margin-bottom: 34px; }
.detail .k {
  font-size: .64rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 10px;
}
.detail .v { font-size: .95rem; color: var(--charcoal); line-height: 1.8; }

form .field { margin-bottom: 22px; }
form label {
  display: block;
  font-size: .64rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 9px;
}
form input, form select, form textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: .92rem;
  color: var(--charcoal);
  background: var(--white);
  border: 1px solid var(--platinum);
  padding: 13px 15px;
  transition: border-color .2s ease;
}
form input:focus, form select:focus, form textarea:focus {
  outline: none;
  border-color: var(--bronze-light);
}
form textarea { min-height: 148px; resize: vertical; }
.form-note { font-size: .76rem; color: var(--steel); margin-top: 18px; }

.map-embed {
  border: 1px solid var(--ivory-dark);
  background: var(--ivory);
  padding: 34px;
}

/* ---------- Footer -------------------------------------------------------- */

.site-footer { background: var(--charcoal); color: rgba(255,255,255,.55); padding: 72px 0 0; }
.site-footer h4 {
  font-family: var(--sans);
  font-size: .64rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--bronze-light);
  margin-bottom: 18px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; }
.site-footer a { color: rgba(255,255,255,.65); font-size: .86rem; }
.site-footer a:hover { color: var(--gold); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { padding: 5px 0; font-size: .86rem; }
.footer-brand svg { width: 44px; height: 44px; margin-bottom: 18px; }
.footer-brand .brand-name { color: var(--white); font-size: 1.2rem; display: block; margin-bottom: 16px; }
.footer-brand p { font-size: .86rem; line-height: 1.8; }

.footer-bar {
  margin-top: 60px;
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 26px 0 30px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  font-size: .74rem;
  color: rgba(255,255,255,.4);
}

/* ---------- Responsive ---------------------------------------------------- */

@media (max-width: 900px) {
  .grid.four { grid-template-columns: repeat(2, 1fr); }
  .grid.three { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--ivory-dark); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .sector { grid-template-columns: 1fr; gap: 16px; }
  .sector .sector-label { padding-top: 0; }
}

@media (max-width: 640px) {
  :root { --gut: 22px; }
  section { padding: 68px 0; }
  .hero { padding: 92px 0 84px; }
  .grid.two, .grid.three, .grid.four { grid-template-columns: 1fr; }
  .sector ul { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 82px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--ivory-dark);
    padding: 12px var(--gut) 22px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; width: 100%; }
  .site-header .wrap { position: relative; }
  .brand-name { font-size: 1.1rem; letter-spacing: .24em; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}